added case-study slug framework

lib/case-study.ts

@@ -0,0 +1,33 @@
+// src/lib/blog.ts
+import fs from 'fs';
+import path from 'path';
+import matter from 'gray-matter';
+import { remark } from 'remark';
+import html from 'remark-html';
+
+const postsDirectory = path.join(process.cwd(), 'content/case-studies');
+
+export async function getPostBySlug(slug: string) {
+  const fullPath = path.join(postsDirectory, `${slug}.md`);
+  
+  // Guard against file system traversal attacks or missing files
+  if (!fs.existsSync(fullPath)) {
+    return null;
+  }
+
+  const fileContents = fs.readFileSync(fullPath, 'utf8');
+  
+  // Use gray-matter to parse the study metadata section
+  const { data, content } = matter(fileContents);
+
+  // Use remark to convert markdown into HTML string
+  const processedContent = await remark().use(html).process(content);
+  const contentHtml = processedContent.toString();
+
+  return {
+    slug,
+    contentHtml,
+    title: data.title || 'Untitled Study',
+    ...data,
+  };
+}